Alfa Laval’s HCO filter technology approved by MAN Diesel & Turbo

Instead of traditional camshafts, the filter uses hydraulic control systems, the valves of which are actuated by a small flow of lube oil, which must be very finely filtered without creating additional pressure drop. The new filter achieves this using Alfa Laval Atrium technology, which provides a tremendous increase in filtering surface within a compact space.

“We are extremely proud to have the Alfa Laval Moatti 290 filter validated for use with HCO systems,” said Herve Gourdon, business manager, filters at Alfa Laval.

The Alfa Laval Moatti 290 filter has both an automatic filter and a redundant filter with high enough efficiency to retain particles of 6 µm and below. These are incorporated into the same frame, with a specially designed changeover valve to prevent any leakage during maintenance.

The redundant filter can be used for initial oil cleaning or when new oil is added into the system, as well as during maintenance. The small flow of oil that provides continuous backflushing is cleaned in a diversion chamber before it is returned to the sump.

The reusable filter combined with the reliability achieved by continuous backflushing is expected to result in a lower operating cost for the filter overall.